Stomach pain a few days after the end of menstruation may be caused by ovulation, pelvic inflammatory disease, cervicitis, gastrointestinal diseases and other reasons. 1. Ovulation: some women enter ovulation a few days after the end of menstruation, due to the flow of follicular fluid into the abdominal cavity after ovulation, stimulating the peritoneum, resulting in the symptom of stomach pain. This kind of pain can usually be relieved by itself after a few days and does not need special treatment. 2. Pelvic inflammatory disease: If women do not pay attention to hygiene, it may lead to the upward spread of pathogenic bacteria, resulting in endometritis, salpingitis and other diseases, there may be a few days after the end of menstruation, stomach pain, usually accompanied by abnormal vaginal discharge and other conditions. 3. Gastrointestinal disorders: If a woman has a history of unclean eating or eats spicy and stimulating food after menstruation, leading to gastrointestinal dysfunction, she may also experience stomach pains a few days after menstruation, and diarrhea and other discomforts may also occur. 4. Cervicitis: If women have intercourse after menstruation, it may lead to invasion of pathogenic bacteria to the cervix, inducing cervicitis, resulting in stomach pain a few days after menstruation, often accompanied by vaginal purulent discharge. If you are experiencing stomach pain a few days after your period, it is recommended that you seek medical attention in a timely manner, and under the guidance of your doctor, complete the relevant examinations to determine the cause of the problem and treat it accordingly.